Improvement in machines for sprinkling liquid poison upon vegetation



P. I. MARSH. Machine for Sprinkling Liquid Poison upon Vegetation.

Patented Dec. 23, 1 79.

INVEN UR. flunk I M2175}??- W ITNEEEEEI- ".PETERS, PHOTO-UTHUGRAPMER,WASHINGTON; DHC.

FRANK l. MARSH, OF NORTH CLARENDON, VERMONT.

IMPROVEMENT IN MACHINES FOR SPRINKLING LIQUID POISON UPON VEGETATION.

Specification forming part of Letters Patent No. 222,831, datedDecen1ber 23, 1879; application filed August 13, 1879. I

To all whom it may concern:

Be it known that I, FRANK I. MARsn, of North Clarendon, in the county ofltutland and State of Vermont, have invented a certain new and usefulImprovement in that class of Machines commonly called Potato-BugExterminators, of which the following is a specification.

My invention relates to machines for sprinkling vegetation with a liquidpoison adapted to destroy the insects which prey thereon Without injuryto the plants.

To this end my invention consists of a certain new construction. andcombination of parts, which will first be clearly described in thespecification, and then more specifically pointed out and defined'in theclaims annexed thereto.

In the following description, reference is had to the drawingsaccompanying and forming part of this specification, in which- Figure lis a perspective view of a machine embodying my invention, a portionbeing broken away to show the interior of the can or reservoir forcontaining the poison. Fig.2 is a view,of the elastic compressible bulb,with the compressing devices and the automatic clamps for closing theeduction-pipe. Fig. 3 is an end elevation of the parts shown in Fig. 2.

A in the drawings representsthe can or receptacle for containing thefluid poison. This receptacle may be of any convenient form, al-

though the round reservoir shown is more easily made, and is, on mostaccounts, equal to any other form. This reservoir is provided with atightly-fitting cover, .G, and has straps F F, attached in anyconvenient manner, so that it may be slung upon the person of theoperator and carried easily.

Within the reservoir is placed a sack or receptacle, E, composed oftextile'material, and so attached to the upper part or neck of thereservoir that when the cover G is removed easy access can be had to themouth of the sack. Within the latter is placed the poisonous materialused, either in crystals or in the pulverized form, the fluid or solventbeing poured in afterward until the can is sufficiently filled.

When the mixture is merely a mechanical one, as in the case of commonparis-green and water, the sack prevents the finely-pulverized powderfrom clogging the tubes and filling the fine perforations of the rose,while at the same time it allows a suffieient quantity of the powder toescape to impregnate the fluid.

When the poison is used in solution the sack retains the excess afterthe solution becomes saturated, and prevents it from being drawn intothe eduction-pipe.

The fluid is discharged by means of a flexible tube, D D, terminating ina rose, B, having a large number of minute perforations. About midway ofthe tube 1) D is placed a compressible elastic bulb, B, having thewellknown alternating valves, whereby the liquid is drawn from thecaninto the bulb and thence discharged through the rose l3.

Upon one end of the bulb B is placed a yoke, a, to which are pivotedcompressors c a, partly surrounding the bulb at the point of itsgreatest diameter. These compressors are operated by the hand of theperson using the machine, a moderate pressure causing them to contractor collapse the flexible bulb B and eject the fluid, while theelasticity of said bulb will cause it to expand, and at the same timeopen the pivoted compressors. The latter are extended beyond theirpivotal point, and are provided at their extremities with pinching-lipsb, which close forcibly upon the eduction-pipe D when the bulb isfilled, but are opened by the contraction of the bulb, thus allowing thefluid to be discharged whenever desired, and

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effectually preventing its accidental escape at all other times. Flangedguards f f are attached to each lip in order to prevent the tube 1) fromaccidentally escaping from between the lips, and, if desired, a springmight be attached to increase their power of compression;

but 1 have found by experience that the clasticity of the bulb B isamply sufiicient to operate the clamp and close the tube thoroughly.

By my invention vegetation which is infested by insects may be veryefi'ectually treated and protected in a very short time, and with agreat economy of the poison used. The simplicity and cheapness of theapparatus, together with the fact that it is impossible for the tubesand valves to clog or for the fluid to leak from the rose when themachineis not in operation, will enable this invention to supply a wantwhich has long been felt by farmers and others.

leakage through the tube is obviated, as set forth.

2. The combination, with the reservoir A, of the closed sack E,suspended therein, the tubes D D, the rose B, bulb B, compressors 0 c,and the automatic clamp b b, as and for the purpose set forth.

The combination, with the can A, having interior suspended sack E, ofthe tubes D D, bulb B, compressors c 0, clamp b I), and guardflanges ff, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification inthepresence of two subscribing Witnesses. V

W FRANK I. MARSH.

Witnesses:

J OI-IN D. SPELLMAN, M. G. EvER'rs.

